| affirmed(verb, adjective, certain, sure, assured) |
| approved(verb, adjective, test, expert, reliable) |
| confirmed(verb, adjective, approved, authorized, evinced) |
| authorized(verb, adjective, qualified, accepted, approved) |
| endorsed(verb, adjective, certain, definite, sure) |
| established(verb, adjective, notorious, confirmed, recognized) |
| validated(verb, adjective, approved, permitted, authorized) |
| proven(verb, adjective, test, expert, reliable) |
| sanctioned(verb, adjective, accepted, approved, permitted) |
| warranted(verb, adjective, certain, sure, approved) |
| assured(verb, adjective, guaranteed, affirmed, ascertained) |
| attested(verb, adjective, test, expert, reliable) |
| authenticated(verb, adjective, approved, authorized, evinced) |
| demonstrated(verb, adjective, evinced, proved, evidential) |
| verified(verb, adjective, affirmed, proved, ascertained) |
| vouched(verb, adjective, guaranteed, evinced, evidential) |
| allowed(verb, adjective, accepted, permitted, official) |
| corroborated(verb, adjective, affirmed, evinced, evidential) |
| permitted(verb, adjective, accepted, approved, official) |
| substantiated(verb, adjective, evinced, evidential, ascertained) |